"""Single released task-stream entry point."""
from copy import deepcopy
from rescopebench.case_validation import ReleasedCase
from .spec import CASE_DIR, DATA, DATA_TOOLS, DATA_TASKS, DATA__TARGET_IDS_BY_TASK, DATA_PROMPT, DATA_SCHEDULE
from .runtime import World

class Driver(ReleasedCase):
    case_id = 'course_registration'
    case_version = 'course-independent-placements-evolution-v3'

    def __init__(self):
        self.source = deepcopy(CASE_DIR / 'raw')
        self.tools = deepcopy(DATA_TOOLS)
        self.tasks = deepcopy(DATA_TASKS)
        self._target_ids_by_task = deepcopy(DATA__TARGET_IDS_BY_TASK)
        self.directory = deepcopy(DATA)
        self.prompt = deepcopy(DATA_PROMPT)
        self.lifecycle_schedule = deepcopy(DATA_SCHEDULE)

    def create_world(self):
        return World(self.source)

    def begin(self, world, task):
        receipt = world.prepare_episode(task['private_task_id'])
        if receipt.get('event_id') != task['event_id']:
            raise ValueError('actual boundary identity differs from the frozen public task')
        return {'status': 'success', 'boundary': receipt}

    def call(self, world, name, arguments):
        return world.dispatch(name, arguments, 'operator-course-registration-dev')

    def grade(self, world, task):
        grade = world.grade(task['private_task_id'])
        grade['completed_artifacts'] = grade.get('completed_artifacts', grade.get('complete_artifacts', 0))
        actual_target_ids = {row.get('target_id') for row in grade.get('deliverables', [])}
        if actual_target_ids != self._target_ids_by_task[task['private_task_id']]:
            raise ValueError('grade target identities differ from the frozen public task')
        return grade

    def public_grade(self, grade):
        components = {}
        for row in grade['deliverables']:
            for name in ('queue_custody', 'transition_committed', 'eligibility_verified', 'seat_credit_invariants_hold'):
                components[row['target_id'] + ':' + name] = {'correct': int(row[name]), 'total': 1}
        return {'score': grade['score'], 'public_components': components}

    def close(self, world):
        close = getattr(world, 'close', None)
        if close is not None:
            close()